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Cloud · head to head

Caddy vs Sentry

Caddy logo

Caddy

Cloud

Web server with automatic HTTPS by default

From
Free
Rated
-
Full reviewWebsite
Sentry logo

Sentry

Technology

Application monitoring platform built by developers for developers

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Caddy smaller ecosystem than Nginx, so third-party guides and modules are fewer; Sentry spending caps stop event ingestion when reached, eliminating visibility during critical moments
  • They diverge on capability: Caddy covers Automatic HTTPS, Sentry covers Error tracking.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Caddy and Sentry actually diverge.

Attributes where Caddy and Sentry differ
AttributeCaddySentry
Pricing modelOpen source, no licence feeUnknown
PlatformsLinux, macOS, Windows, DockerWeb, iOS, Android, React Native, Desktop, 30+ frameworks and languages
CategoryCloudTechnology
FoundedUnknown2011

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Caddy

  • Automatic HTTPS
  • Caddyfile
  • Reverse proxy
  • Single binary

Only in Sentry

  • Error tracking
  • Performance monitoring
  • Release tracking
  • Real user monitoring
  • Alerting
  • Issue assignment
  • Breadcrumbs
  • Source maps

What people use each for

The jobs each tool is most often brought in to do.

Caddy

  • Sites and services where expired certificates have caused outages beforenot Sentry
  • Small deployments where Nginx configuration is more effort than the problem warrantsnot Sentry
  • Reverse proxying internal services with TLS without a certificate workflownot Sentry

Sentry

  • Error monitoringnot Caddy
  • Performance trackingnot Caddy
  • Debug production issuesnot Caddy
  • Release managementnot Caddy
  • User monitoringnot Caddy

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Caddy

  • Smaller ecosystem than Nginx, so third-party guides and modules are fewer
  • Adding plugins means rebuilding the binary rather than loading a module
  • Under very high throughput Nginx generally still benchmarks ahead
  • Automatic certificate issuance needs outbound internet access, which complicates air-gapped deployments

Sentry

  • Spending caps stop event ingestion when reached, eliminating visibility during critical moments
  • Complex configuration required for filters, sampling rules, issue grouping, and alert policies
  • Difficult to configure custom alerts and alert content without creating email inbox bloat
  • Error grouping is imperfect with noise and filtering issues causing incorrect error prioritization
  • Weak for distributed tracing across microservices compared to dedicated APM tools
  • UI dashboard is less customizable than alternatives like Datadog APM for complex monitoring needs

Pricing, plan by plan

Caddy

Free
  • CaddyFree
    • Full functionality
    • Commercial use permitted
    • Community support

Sentry

Free
  • Developer (Free)Free
    • 5K errors per month
    • 1 user seat
    • 30-day data retention
  • Team$26/month
    • 50K errors per month
    • 5M transaction spans
    • 90-day data retention
  • Business$80/month
    • Higher quotas
    • Extended retention
    • Advanced filtering
  • Organization$199/month
    • SSO integration
    • Audit logs
    • Advanced security

Which should you pick?

Choose Caddy if

  • You need automatic https.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker.
  • You also want caddyfile.
Caddy review

Choose Sentry if

  • You need error tracking.
  • You want to start without paying.
  • You work on Web, iOS, Android, React Native, Desktop, 30+ frameworks and languages.
  • You also want performance monitoring.
Sentry review

Questions people ask

Is Caddy or Sentry better?
Neither clearly leads. Caddy starts at Free and Sentry at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Caddy or Sentry?
Caddy starts at Free and Sentry at Free.
Does Caddy or Sentry run on more platforms?
Caddy runs on Linux, macOS, Windows, Docker. Sentry runs on Web, iOS, Android, React Native, Desktop, 30+ frameworks and languages.
Can I use Caddy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Caddy best used for?
Caddy is most often used for sites and services where expired certificates have caused outages before, small deployments where nginx configuration is more effort than the problem warrants, reverse proxying internal services with tls without a certificate workflow. Of those, sites and services where expired certificates have caused outages before and small deployments where nginx configuration is more effort than the problem warrants are not what Sentry is typically brought in for.
What can Caddy do that Sentry cannot?
Caddy covers Automatic HTTPS, Caddyfile, Reverse proxy, Single binary. Sentry covers Error tracking, Performance monitoring, Release tracking, Real user monitoring.

Answered from the vendors’ own pages

Caddy: Is Caddy free?

Yes, open source under the Apache 2.0 licence, free for commercial use.

Sentry: Does Sentry have a free tier?

Yes. The free Developer tier includes 5,000 errors per month, one user seat, 30-day retention, and 50 session replays per month.

Source
Caddy: What does automatic HTTPS mean?

Caddy obtains certificates from Let’s Encrypt or ZeroSSL on first request and renews them before expiry, with no cron job or configuration.

Sentry: How much do Sentry's paid plans cost?

Team plan starts at $26/month (annual) or $29/month (monthly) with 50K errors and 5M spans included. Business plan is $80-89/month. Organization plans start at $199/month with SSO and advanced compliance features.

Source
Caddy: Caddy or Nginx?

Caddy is dramatically simpler to configure and removes certificate management. Nginx has the larger ecosystem and better peak throughput.

Sentry: What programming languages does Sentry support?

Sentry supports over 30 languages and frameworks including JavaScript, Python, Go, Ruby, Java, .NET, PHP, Node.js, and mobile platforms including iOS, Android, and React Native.

Source
Sentry: Does Sentry support self-hosting?

Yes. Sentry can be self-hosted, and the open-source version is available for deployment in on-premises environments.

Source
Sentry: How does Sentry billing work if I exceed my quota?

Sentry offers spending caps that stop ingestion when reached, meaning you lose visibility exactly when you need it most. You can pre-purchase reserved capacity at 20% discount or pay per event on-demand when exceeding included allotment.

Source
Sentry: What integrations does Sentry support?

Sentry integrates with GitHub, GitLab, Jira, Slack, PagerDuty, most CI/CD pipelines, and many other developer tools.

Source
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